Peanut butter stuffed brownies are rich, fudgy chocolate brownies with a thick layer of creamy peanut butter baked right into the center. This recipe creates bold chocolate flavor with a smooth peanut butter filling that stays soft, giving you a perfect chocolate peanut butter combination in every bite.
A Quick Look at the Recipe
✅ Recipe Name: Peanut Butter Stuffed Brownies
🕒 Ready In: ~45 minutes (plus freezing time)
👪 Serves: About 9-12 brownies
🥣 Main Ingredients: Creamy peanut butter, butter, semi-sweet chocolate chips, cocoa powder, flour, sugar, egg
👌 Difficulty: Easy - layer, bake, and cool
⭐ Why You'll Love It: Fudgy chocolate brownies with a thick peanut butter center, delivering rich chocolate flavor and a clean, creamy peanut butter layer in every bite.
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Made with simple ingredients and an easy layering method, these peanut butter stuffed brownies bake up dense and fudgy with just the right amount of structure. Freezing the peanut butter layer first makes the assembly straightforward and helps keep the filling neatly in the center while baking.
If you enjoy chocolate desserts, you may also like our Chocolate Pumpkin Bread, Brownie Cookies, and Chocolate Sheet Cake that are great for sharing and make-ahead baking.
Jump to:
- A Quick Look at the Recipe
- Why You'll Love Peanut Butter Stuffed Brownies
- Key ingredients
- Easy Substitutions & Variations
- how to make Peanut Butter Stuffed Brownies
- recipe Notes & Tips
- Make-Ahead & Freezing Options
- Peanut Butter Stuffed Brownies faqs
- More Cookie Recipes You'll Love
- Get our Baking Tips & Tricks Ebook
- Peanut Butter Stuffed Brownies
Why You'll Love Peanut Butter Stuffed Brownies
Rich chocolate flavor: Made with cocoa powder and melted chocolate for deep, fudgy brownies.
Thick peanut butter center: A frozen peanut butter layer creates a clean, creamy filling in every bite.
Fudgy texture: These brownies bake up dense and soft without being dry.
Easy layering method: Freezing the peanut butter first makes assembly simple and mess free.
Perfect for sharing: Great for parties, potlucks, and make ahead desserts.
Key ingredients
- Creamy peanut butter: Creates the smooth, rich center that stays soft and distinct after baking.
- Semi sweet chocolate chips: Melt into the batter to add deep chocolate flavor and a fudgy texture.
- Cocoa powder: Intensifies the chocolate taste and gives the brownies their rich color.
- Butter: Adds richness and helps create a dense, fudgy brownie base.
- Granulated sugar: Sweetens the brownies and contributes to their soft, chewy texture.
- Egg: Binds the batter and provides structure while keeping the brownies tender.
Scroll to the recipe card at the bottom of this page for exact quantities.
Easy Substitutions & Variations
- Crunchy peanut butter: Use crunchy peanut butter instead of creamy for added texture in the filling.
- Chocolate swap: Replace semi sweet chocolate chips with dark chocolate chips for a deeper chocolate flavor.
- Thicker brownies: Chill the assembled brownies for 15-20 minutes before baking to help keep the layers extra defined.
- Salted finish: Sprinkle flaky sea salt on top before baking for a sweet and salty contrast.
- Mini brownie option: Bake the brownies in a muffin pan for individual peanut butter stuffed brownie cups, reducing the bake time.
how to make Peanut Butter Stuffed Brownies
- Step 1: Melt 1 ½ cups of creamy peanut butter in a microwave-safe bowl or over a double boiler. Pour the melted peanut butter into an 8x8-inch pan lined with parchment paper, spreading it evenly. Freeze for at least 1 hour, or until firm.
- Step 2: Preheat your oven to 350. In a medium saucepan, melt the butter and semi-sweet chocolate chips over low heat. Remove from heat and let it cool slightly. Stir the granulated sugar into the melted butter and chocolate mixture.
- Step 3: Add the egg and vanilla extract, mixing until well combined.
- Step 4: Sift in the flour, cocoa powder, and salt.
- Step 5: Remove the frozen peanut butter layer from the freezer and carefully lift it out of the pan using the parchment paper. Reline the pan with parchment paper. Pour half the brownie batter in the pan then place the whole peanut butter layer on top.
- Step 6: Pour the remaining brownie batter over the peanut butter layer, spreading it evenly. Bake in the preheated oven for 30 minutes, or until a toothpick inserted into the center comes out with just a few moist crumbs. The brownies will firm up as they cool.
recipe Notes & Tips
- Freeze the peanut butter layer fully: Make sure the peanut butter layer is completely firm before assembling so it stays centered while baking.
- Line the pan well: Use parchment paper with overhang to make removing and slicing the brownies easier.
- Do not overmix the batter: Stir just until the dry ingredients are incorporated to keep the brownies fudgy.
- Watch the bake time: Remove the brownies when a toothpick shows a few moist crumbs for the best texture.
- Let brownies cool before slicing: Allow the brownies to cool completely so the layers set and cut cleanly.
Make-Ahead & Freezing Options
- Make ahead: Prepare and bake the brownies up to 1 day in advance, then store them covered at room temperature until ready to serve.
- Refrigerate for cleaner slices: Chilling the brownies for 1-2 hours before slicing helps create clean, defined layers.
- Freeze whole brownies: Freeze the fully cooled brownies tightly wrapped for up to 2 months.
- Freeze individual squares: Slice and wrap brownies individually for easy thawing and portioning.
- Thawing tips: Thaw brownies at room temperature until softened, or warm slightly before serving if desired.
Peanut Butter Stuffed Brownies faqs
To keep peanut butter stuffed brownies from blending together, the peanut butter layer should be fully frozen before assembling. Pouring half the brownie batter below and half above the frozen layer helps keep the filling centered and clearly defined.
Yes, peanut butter can be swirled into the brownie batter, but the result will be marbled rather than stuffed. For a true peanut butter stuffed brownie with a thick center layer, freezing and layering the peanut butter works best.
Creamy, shelf-stable peanut butter works best for peanut butter stuffed brownies because it freezes firmly and creates a smooth, even layer. Natural peanut butter may separate and is less reliable for stuffing.
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Peanut Butter Stuffed Brownies
Equipment
Ingredients
Instructions
- Melt 1 ½ cups of creamy peanut butter in a microwave-safe bowl or over a double boiler. Pour the melted peanut butter into an 8x8-inch pan lined with parchment paper, spreading it evenly. Freeze for at least 1 hour, or until firm.
- Preheat your oven to 350.
- In a medium saucepan, melt the butter and semi-sweet chocolate chips over low heat, stirring constantly until smooth. Remove from heat and let it cool slightly.
- Stir the granulated sugar into the melted butter and chocolate mixture. Add the egg and vanilla extract, mixing until well combined. Sift in the flour, cocoa powder, and salt.
- Remove the frozen peanut butter layer from the freezer and carefully lift it out of the pan using the parchment paper.
- Reline the pan with parchment paper. Pour half the brownie batter in the pan then place the whole peanut butter layer on top. Pour the remaining brownie batter over the peanut butter layer, spreading it evenly.
- Bake in the preheated oven for 30 minutes, or until a toothpick inserted into the center comes out with just a few moist crumbs. The brownies will firm up as they cool.
Nutrition
Notes
- Freeze the peanut butter layer fully: Make sure the peanut butter layer is completely firm before assembling so it stays centered while baking.
- Line the pan well: Use parchment paper with overhang to make removing and slicing the brownies easier.
- Do not overmix the batter: Stir just until the dry ingredients are incorporated to keep the brownies fudgy.
- Watch the bake time: Remove the brownies when a toothpick shows a few moist crumbs for the best texture.
- Let brownies cool before slicing: Allow the brownies to cool completely so the layers set and cut cleanly.
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